vpc

Component: vpc

This component is responsible for provisioning a VPC and corresponding Subnets. Additionally, VPC Flow Logs can optionally be enabled for auditing purposes. See the existing VPC configuration documentation for the provisioned subnets.

Usage

Stack Level: Regional

Here's an example snippet for how to use this component.

components:
  terraform:
    vpc:
      vars:
        subnet_type_tag_key: "example.net/subnet/type"
        vpc_flow_logs_enabled: true
        vpc_flow_logs_bucket_environment_name: "uw2"
        vpc_flow_logs_bucket_stage_name: "audit"
        vpc_flow_logs_traffic_type: "ALL"
        cidr_block: "10.111.0.0/18"

Requirements

Name	Version
terraform	>= 0.12.0
aws	>= 2.0
local	>= 1.3
template	>= 2.0

Providers

No providers.

Modules

Name	Source	Version
iam_roles	../account-map/modules/iam-roles	n/a
subnets	cloudposse/dynamic-subnets/aws	0.39.3
this	cloudposse/label/null	0.24.1
vpc	cloudposse/vpc/aws	0.26.1

Resources

No resources.

Inputs

Name	Description	Type	Default	Required
additional_tag_map	Additional tags for appending to tags_as_list_of_maps. Not added to tags.	map(string)	{}	no
attributes	Additional attributes (e.g. 1)	list(string)	[]	no
availability_zones	List of availability zones in which to provision VPC subnets	list(string)	[]	no
cidr_block	VPC CIDR block	string	n/a	yes
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as null to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	any	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "enabled": true, "environment": null, "id_length_limit": null, "label_key_case": null, "label_order": [], "label_value_case": null, "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {} }	no
delimiter	Delimiter to be used between namespace, environment, stage, name and attributes. Defaults to - (hyphen). Set to "" to use no delimiter at all.	string	null	no
enabled	Set to false to prevent the module from creating any resources	bool	null	no
environment	Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT'	string	null	no
id_length_limit	Limit id to this many characters (minimum 6). Set to 0 for unlimited length. Set to null for default, which is 0. Does not affect id_full.	number	null	no
import_role_arn	IAM Role ARN to use when importing a resource	string	null	no
label_key_case	The letter case of label keys (tag names) (i.e. name, namespace, environment, stage, attributes) to use in tags. Possible values: lower, title, upper. Default value: title.	string	null	no
label_order	The naming order of the id output and Name tag. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 5 elements, but at least one must be present.	list(string)	null	no
label_value_case	The letter case of output label values (also used in tags and id). Possible values: lower, title, upper and none (no transformation). Default value: lower.	string	null	no
map_public_ip_on_launch	Instances launched into a public subnet should be assigned a public IP address	bool	true	no
max_subnet_count	Sets the maximum amount of subnets to deploy. 0 will deploy a subnet for every provided availability zone (in region_availability_zones variable) within the region	number	0	no
name	Solution name, e.g. 'app' or 'jenkins'	string	null	no
namespace	Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp'	string	null	no
nat_gateway_enabled	Flag to enable/disable NAT gateways	bool	n/a	yes
nat_instance_enabled	Flag to enable/disable NAT instances	bool	n/a	yes
nat_instance_type	NAT Instance type	string	"t3.micro"	no
regex_replace_chars	Regex to replace chars with empty string in namespace, environment, stage and name. If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.	string	null	no
region	AWS Region	string	n/a	yes
region_availability_zones	List of availability zones in region, to be used as default when availability_zones is not supplied	list(string)	[]	no
stage	Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release'	string	null	no
subnet_type_tag_key	Key for subnet type tag to provide information about the type of subnets, e.g. cpco/subnet/type=private or cpcp/subnet/type=public	string	n/a	yes
subnet_type_tag_value_format	This is using the format interpolation symbols to allow the value of the subnet_type_tag_key to be modified	string	"%s"	no
tags	Additional tags (e.g. map('BusinessUnit','XYZ')	map(string)	{}	no

Outputs

Name	Description
max_subnet_count	Maximum allowed number of subnets before all subnet CIDRs need to be recomputed
nat_gateway_ids	NAT Gateway IDs
nat_gateway_public_ips	NAT Gateway public IPs
nat_instance_ids	NAT Instance IDs
private_route_table_ids	Private subnet route table IDs
private_subnet_cidrs	Private subnet CIDRs
private_subnet_ids	Private subnet IDs
public_route_table_ids	Public subnet route table IDs
public_subnet_cidrs	Public subnet CIDRs
public_subnet_ids	Public subnet IDs
vpc_cidr	VPC CIDR
vpc_id	VPC ID

References

• cloudposse/terraform-aws-components - Cloud Posse's upstream component